GIANT-CELL FIBROBLASTOMA ASSOCIATED WITH DERMATOFIBROSARCOMA PROTUBERANS OF THE ADULT

Introduction. Giant cell fibroblastoma is a rare mesenchyma tumor of c hildhood having many similarities with dermatofibrosarcoma protuberans in adults. Observation. We report the case of a 28-year-old woman pre senting a subcutaneous inter-mammary mass associating both tumors. Imm unohistochemistry showed an expression of CD 34 only by dermatofibrosa rcoma protuberans cells. Discussion. It is important to stress: the ra rity of this association, the difficulty to confirm the diagnosis and to establish the links between these two tumors : simple association ( as in our case), transformation or recurrence of giant cell fibroblast oma in dermatofibrosarcoma protuberans.